28100134946 has 32 divisors (see below), whose sum is σ = 46937415168. Its totient is φ = 12529336320.

The previous prime is 28100134943. The next prime is 28100134967. The reversal of 28100134946 is 64943100182.

28100134946 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (28100134943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443426 + ... + 502818.

It is an arithmetic number, because the mean of its divisors is an integer number (1466794224).

Almost surely, 2^28100134946 is an apocalyptic number.

28100134946 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28100134946 is a deficient number, since it is larger than the sum of its proper divisors (18837280222).

28100134946 is a wasteful number, since it uses less digits than its factorization.

28100134946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60026.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 28100134946 in words is "twenty-eight billion, one hundred million, one hundred thirty-four thousand, nine hundred forty-six".